Trailer hitch lock



FIG. 1 is a perspective front, left side and top view thereof.

FIG. 2 is a rear elevational view thereof.

FIG. 3 is a right side elevational view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof, shown in use on a trailer hitch.

The broken lines in the figures illustrate portions and environment that form no part of the claimed design. 

CLAIM The ornamental design for an trailer hitch lock, as shown and described. 